commit d45f383b0150c2617c1e0b9169205eb2069e2711
author Hanno Becker <hanno.becker@arm.com> Tue Aug 20 14:21:40 2019 +0100
committer Hanno Becker <hanno.becker@arm.com> Wed Sep 04 16:17:25 2019 +0100
tree 34407f7390adfc89420bc78b35db78b2b9f5a351
parent 7e38c373026496a92a27f1bd689263f989864ea4

TinyCrypt PK parse: Impl. EC public key derivation in TC-based ECDSA

library/pkparse.c

diff --git a/library/pkparse.c b/library/pkparse.c
index dbef18a..fce5ad7 100644
--- a/library/pkparse.c
+++ b/library/pkparse.c
@@ -978,7 +978,14 @@
         }
     }
 
-    //TODO: Do we need to support derived public keys with uecc?
+    if( !pubkey_done )
+    {
+        ret = uECC_compute_public_key( keypair->private_key,
+                                       keypair->public_key,
+                                       uECC_secp256r1() );
+        if( ret == 0 )
+            return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
+    }
 
     return( 0 );
 }